Looking at the specs for the 610-303 the shoulder length is longer than the 610-389 that I used.... Have you tried these on your front hub? I ended up having to turn the shoulder down on my lather to get them to work. Just curious if my front hubs have a thinner flange? Also the knurl is a little larger in diameter at .677 vs the .666 of the 610-389, I don't think that is a huge deal, but the shoulder length may be an issue.
Hopefully we can get a good list of part numbers for all of us to reference.
